i can't agree with you more. i attended the exam yesterday, that was extremely painful, not the exam questions but the environments. I can't even type a completed syntax, the spark-shell or notepad are extremely slow, almost like i am in the slow motion movie, when i scrolled the page, there was a wave, like 20-30 seconds delay time. During the entire exam, i can't do copy and paste from exam html to my spark-shell console like the instruction told me, tried to call customer service this morning for $250 refund but no one answers, if HW is reading this, please respond to my case. That was VERY BAD EXPERIENCE, i will not suggest anyone to take.